p1416 popped up and apparently I need to do this but I am kinda in the dark on how to! lol Go figure! Anyone have some easy steps to follow?:doh:

Spray some carburetor cleaner in the rubber hose going to the "REAR" This will allow cleaner to reach BOTH check valves. Once you give the hose a GOOD shot of carb cleaner, use compressed air to force it through the system.
Once you have forced the cleaner thru, give the hose a good shot of WD-40 and force that through. The CHECK VALVES have a spring loaded disk that seats on a plastic seat. If it gets exhaust reside on the seat, moisture from the cold air will cause the seat to stick shut.
Cleaning it with carb cleaner and WD-40 should allow it to free up.
IF for some reason that the seat is stuck shut bad enough, you may need to remove the hose from the AIR side of the check valve and force chemicals in that individual valve.
There are TWO check valves. One for the drivers side which is easily serviced and right out in the open:
The one for the passengers side is behind the engine!!!! Yep,,it's a royal BITCH to get to. It is possible to get a wrench back there and loosen the retaining bolt BUT,,, like I said,,,you will NOT enjoy the experience. You will NOT be able to see this on your car!
If you need to clean the passengers side valve, you can disconnect the pump air supply hose and the air supply hose from the Y connection at the rear of the engine. If you need some help let me know bro

Can you use brake cleaner for this?